Messages in this thread | | | Subject | Re: [PATCH 1/2] pipe: fix potential use-after-free in pipe_read() | From | "Leizhen (ThunderTown)" <> | Date | Mon, 15 Nov 2021 14:13:44 +0800 |
| |
On 2021/11/15 12:25, Matthew Wilcox wrote: > On Mon, Nov 15, 2021 at 11:57:20AM +0800, Zhen Lei wrote: >> if (!buf->len) { >> + unsigned int __maybe_unused flags = buf->flags; > > Why __maybe_unused?
It's used only if "#ifdef CONFIG_WATCH_QUEUE". Otherwise, a warning will be reported.
> . >
| |